Slučajno naletio na ovo pa možda nekoga zanima :
Changing the tail-riser also changes the geometry of the rear suspension - and they are a big improvement for the bikes for those on offer. The rear preload does not dump in so much, but works more stiff from start. The suspension get's less work which results in a more harmonic balance and the wanted grip when you start winding the throttle open. As a nice side effect, getting your tail up allows you more freedom to lie into corners and a better general handling due to the fact that the front suspension is more up right.
+ better handling
+ better feedback from rear suspension
+ more grip on the rear wheel
+ more weight on the front wheel
+ less kickback
+ better look due to the raised tail
+ tested and recommended by motorbike journalists all over the world
+ proved in races
http://www.bikefarmmv.de/EN/tail-riser/index.php